Choosing a Claude model is now a product decision: when to use Haiku, Sonnet, or Opus 4.7
goyalshaliniuk · x · 2026-09-22
The author frames Claude model selection as a product decision, not just a technical one:
- Haiku: speed and cost efficiency — chatbots, tagging, classification, data extraction, quick support replies
- Sonnet: the balanced default — writing, debugging, research, analysis, multi-step business tasks
- Opus 4.7: quality over speed/cost — deep research, complex decisions, long documents, strategy, hard coding problems
The right question isn't "which Claude is best" but which problem type each model solves.
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